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An Anatomical Study of Nerves at Risk During Minimally Invasive Hallux Valgus Surgery
Published on: February 17, 2018
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Relevancy Grading of Outcome-Predicting Factors After Distal Chevron Osteotomy for Hallux Valgus Correction
Franz Endstrasser1, Gerhard Kaufmann2, Moritz Wagner1
1*Orthopedics and Traumatology, BKH St. Johann in Tirol, St. Johann in Tirol, Austria.
Journal of the American Podiatric Medical Association
|August 27, 2025
Summary
Radiographic factors like hallux valgus angle (HVA) and sesamoid position significantly predict loss of correction after bunion surgery. Early identification of these factors aids in achieving better surgical outcomes.
Area of Science:
- Orthopedic surgery
- Radiology
- Biomechanical analysis
Background:
- Hallux valgus surgery aims to correct foot deformities.
- Loss of correction (LOC) can occur post-surgery.
- Identifying predictors of LOC is crucial for improving surgical outcomes.
Purpose of the Study:
- To identify radiographic risk factors for early loss of correction (LOC) after hallux valgus surgery.
- To determine the relative importance of these radiographic factors in predicting LOC.
Main Methods:
- Retrospective analysis of 1,082 chevron osteotomy cases.
- Radiographic assessment of early LOC from immediate postoperative to 12 weeks.
- Evaluation of preoperative and postoperative radiographic parameters using correlation and regression analyses.
Main Results:
- Mean LOC was 1.4° for intermetatarsal 1-2 angle (IMA) and 3.5° for hallux valgus angle (HVA) at 6 weeks.
- Significant correlations found between LOC and various preoperative/postoperative radiographic parameters.
- Postoperative HVA and sesamoid position were the most critical predictors of LOC.
Conclusions:
- Multiple radiographic parameters correlate with early LOC after hallux valgus surgery.
- Postoperative HVA and sesamoid position are the most influential factors.
- Comprehensive correction considering all deformity aspects is recommended.

